The common causes of lung infections are bacterial infections, respiratory viral infections, etc. Hyperinsulinemia usually leads to hypoglycemia, acanthosis nigricans, etc., and does not usually cause lung infections. The causes of hyperinsulinemia include genetic factors, etc., which may mainly lead to hypoglycemia and acanthosis nigricans. The most common bacteria that cause lung infections are Streptococcus pneumoniae, viruses are influenza virus, parainfluenza virus, etc. High risk factors include patients with chronic obstructive pulmonary disease, immunocompromised patients, and its common symptoms include cough, sputum, fever, dyspnea, which can be accompanied by chest pain. If you suffer from hyperinsulinemia, lung infections should be treated by a doctor.